Conrad adami



No. 626,450. Patented June 6, I899. C. ADAMI. COOLER FOB SODA WATER OROTHER AERATED LIQUIDS. (Apphcatxon filed Mar 22 1899) (No Model.)

UNI'ID STATES PATENT OFFICE.

CONRAD ADAMI, OF BOSTON, MASSACHUSETTS, ASSIGNOR T 0 THE AMERL CAN SODAFOUNTAIN COMPANY, OF SAME PLACE.

COOLER F QR SODA-WATER OR OTHER AERATED LIQUIDS.

SPECIFICATION forming part of Letters Patent No. 626,450, dated June 6,1899.

Application filed March 22, 1899. Serial No. 710,119. (No model.)

To all w/torn it may concern:

Be it known that I, CONRAD ADAMI, a citizen of the United States,residing at Boston, in the county of Suffolk and State ofMassachusetts,l1ave invented certain Improvements in Coolers forSoda-VVater or other Aerated Liquids, of which the following is aspecification.

My invention relates particularly to sodawater coolers in which theliquid passes through a spiral passage or chamber formed between anouter shell or casing and an inner core or cylinder arranged therein;and my invention has for its objects to secure economy in theconstruction of the cooler, to chill the liquid to thegreatest possibledegree, to avoid sputtering at the draft-tube, and to protect the liquidfrom metallic contamination while passing through the cooler.

To this end my invention consists in the combination, with a coolercomposed of an outer casing, a central core, and a spiral partitionbetween said casing and core forming a spiral passage through which theliquid passes on its way from the inlet to the outlet, of an outlet-pipeprovided with two branches, one of which extends to the bottom of thecooler, the normal position of which is horizontal, and forms theprincipal outlet-passage through which the soda-water flows, while theother branch extends to the upper portion of the cooler and forms apassage through which the air is expelled when the cooler is firstfilled and subsequently provides a passage through which any gas thatmay have become separated from the aerated liquid owing to the reductionin pressure may be recombined with the liquid in drafting, and therebybe prevented from passing as free gas to the drafttube, where it wouldproduce sputtering, which is objectionable, as it lessens the flow ofthe liquid and spatters the operator.

My invention also consists in certain other novel features and detailsof construction, as will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is an elevation of a soda-watercooler constructed in accordance with my invention, the central portionbeing broken away. Fig. 2 is a longitudinal vertical section of thesame.

Fig. 3 is a transverse vertical section on the line 3 3 of Fig. 2.

In the drawings, A represents the outer shell or casing of the cooler,which is constructed of copper to secure the requisite strength toresist the pressure of the gas contained in the soda-water or otheraerated liquid which is to pass through the cooler,said casing beingprovided with a thick lining Z), of pure block-tin, whereby the liquidis protected from metallic contamination during its passage through thecooler.

Arranged centrally within the casingA is a core B, composed of anysuitable non-corrosive material, preferably block-tin. I preferablyemploy a core consisting of a hollow cylinder of block-tin of lessdiameter than the outer casing, forming an annular space I), as shown inFigs. 2 and 3, said cylinder being reinforced by an internal rod or tube0, of wood or metal, to prevent collapse under the pressure of thecarbonic-acid gas contained in the aerated liquid, the ends of the corebeing closed by cast, spun, or stamped heads or caps 12, of block-tin.The length of the core Bis preferably less than that of the outer casingA', whereby spaces or chambers d e of the full diameter of the casingare left at the ends of the same, as shown in Fig. 2.

Within the annular space between the outer casing and its coreis aspirally-disposed strip f of block-tin, forming a spiral passage-way,through which the aerated liquid flows from the chamber d to the chamber6, the liquid being thereby compelled to make several complete circuitsof the cooler on its way from the inlet to the outlet, travelingspirally around the core, whereby a rapid cooling of the liquid isefiected.

g is the inlet-tube, and D is the outlet or discharge tube, the innerend of which is preferably cast integral with the cap 12 of the adjacentend of the core B, to which it is secured in any suitable manner. Thisoutlet tube D is provided with two oblique branches ht',the larger one,h,of which extends down to the bottom of the-chambere and forms theprincipal outlet-passage through which the soda-water or other aeratedliquid flows. The smaller branch 2 extends to the upper part of thechamber e and forms a passage which any gas that fnay have becomeseparated from the liquid owing to reduction in pressure caused by theopening of the draftcock may be recombined with the liquid in drafting,and thus prevented from passing as free gas to the draft-tube, where itwould produce sputtering, which is a serious objection, as it lessensthe flow of the liquid and is liable to spatter the attendant. As theliquid passes out through the branch hinto the main portion of theoutlet-tube D it absorbs and draws with it the gas escaping through thebranch 2', whereby the liquid and gas becomeproperly mixed beforearriving at the draft-cock.

By combining with a cooler of the character described an outlet ordischarge pipe having two branches, one extending to the lower and theother -to the upper portion of the cooler, a great advantage is gainedfor the reason that with a cylindrical cooler having a singledischarge-tube without branches the gas under reduction of pressurecaused by opening the draft-tube and increase of temperature due to theinflow of warmer liquid fromthe source of supply will become separatedfrom the liquid and driving the same backward will collect as free gasat the top of the cooler, forming a non-conducting layer between thesoda-water and the upper part of the cooler,with which the ice is incontact, thus lessening the efficiency of the cooler and also causingloss of gas, delay in the flow of the liquid, and an unpleasantsputtering, as

before mentioned, at the draft-tube, all of to the size of theice-compartment of the dispensing apparatus in which they are to beplaced.

What I'claim as my invention, and desire to secure by Letters Patent, is

1. In a cooler of the character described, the combination with theshell or casing having a central core and a spirally-disposed partitionforming a passage-way for the liquid between said casing and core, of anoutlet or discharge pipe located at one end of the cooler, and providedwith two branches,-one extending to the bottom of the cooler, and theother to the upper portion of the same, substantially as described.

the combination with the shell or casing having a central core, aninlet-chamber at one end provided with an inlet-pipe and anoutlet-chamber at its opposite end, and a spirally-disposed partitionforming a spiral passage-way for the liquid between said core andcasing, of an outlet or discharge pipe located within theoutlet-chamber, and provided with two branches, one extending to thebottom of said outlet-chamber, and the other to the upper port-ion ofthe same, substantially as described.

3. In a cooler of the character described,

